MS hug only when I awaken??

I don’t know if this is ms hug or not but when I awaken My back and round the area above my waist is v…stiff and painful,once I get up and move about am OK, is this the infamous ms hug?

Now this is a good question and I hope someone can answer, as I get exact them same feeling, sometimes just on the left side but most often both. Paul

Want to bump myself as would love answer to this!